A1 Refereed original research article in a scientific journal
A Period Study of the Eclipsing Binary U Sagittae
Authors: Manzoori, D.; Gozaliasl, G.
Publisher: The American Astronomical Society
Publication year: 2007
Journal:: The Astronomical Journal
Volume: 133
Issue: 4
First page : 1302
Last page: 1306
Number of pages: 5
ISSN: 0004-6256
DOI: https://doi.org/10.1086/511064
Web address : https://iopscience.iop.org/article/10.1086/511064/meta
Self-archived copy’s web address: https://iopscience.iop.org/article/10.1086/511064/meta
The O - C curve of the eclipsing binary U Sagittae was analyzed using the Kalimeris method. A period decrease was indicated by this curve. The observed period P(E) and its rate of change dP/dE as a function of time were calculated. To reveal any cyclic period variations, the P(E) function was subjected to Fourier analysis. A cyclic period change of 9.5 yr duration with amplitude ΔP = 6.385 × 10-6 days was obtained. The mass transfer rate for the system was calculated, and these results have been used to discuss period variability.
